Use: rtl_ais [options] [outputfile] [-l left_frequency (default: 161.975M)] [-r right_frequency (default: 162.025M)] left freq < right freq frequencies must be within ...

Basically I want the AIS objects to be visible in the Freeboard App in SignalK, I am trying to understand the connection that SDR VHF makes in the Openplotter-rtl_ais process. I presume this starts up ...